﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.Graphics.Display;
using Windows.UI.ViewManagement;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Data;

namespace Windows8Accelerator.Core.Xaml.Converters
{
    public sealed class BooleanToVisibilityConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            var invert = false;
            if (parameter is string)
                bool.TryParse((string)parameter, out invert);
            var b = (value is bool && (bool)value);
            if (invert)
                b = !b;
            return b? Visibility.Visible : Visibility.Collapsed;
        }

        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            return value is Visibility && (Visibility)value == Visibility.Visible;
        }
    }
}
